Avast mobile security ANti thief COMPLETE WIPE!

How do i do it ? I changed to my new sim card , it just keep sending me sms.I cant disable it, I even try to completely wipe the data and uninstall , but once i restart my phone it still send me a sms , even my avast is not installed ! I need to know how to completely erase all information on my phone please . Am using a samsung galaxy s3

You need to open avast! Mobile Security, give your PIN, click Anti-Theft, go to the right corner to select Settings. Then clean your SIM list.
The actual SIM inserted will be added to the white list.

I cant find the SIM list setting , once i open Anti-thief, there’s only basic setting , advance setting and Help . Thats all…

Press your either left or right physical key on your phone…

Thanks , Im using samsung S3 so only the home button is physical . but found my way already

Im also using the S3:)

For those of you who doesnt know, its the key on the left, wether its physical or not…